Babbage from The Economist (subscriber edition)

Approximately 150 million children around the world are malnourished to the point of stunting. This has a serious impact not only on their height, but also on the development of their brains. Researchers have found that a poor diet and a lack of stimulation can lead to a loss of around 15 IQ points later in life. But a few cheap and simple things could easily prevent this enormous loss of global brain power.Host: Alok Jha, The Economist’s science and technology editor. Contributors: Tahmeed Ahmed and Tafsir Hasan of the International Centre for Diarrhoeal Disease Research, Bangladesh; Sarah Cusick of the University of Minnesota; Rasa Izadnegahdar of the Bill and Melinda Gates Foundation; The Economist’s Robert Guest and Sondre Solstad. Transcripts of our podcasts are available via economist.com/podcasts.Listen to what matters most, from global politics and business to science and technology—subscribe to Economist Podcasts+.For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.

Spies have always relied on technology to stay one step ahead of their adversaries. In the age of ubiquitous camera surveillance, smartphones and the internet, they now have access to more data and information than ever before. But all that technology is also making other parts of their job harder—staying undercover has become more difficult. How are the tools of the spy trade—and the role of intelligence officers themselves—evolving in the digital age?Host: Alok Jha, The Economist’s science and technology editor. Contributors: Shashank Joshi, The Economist's defence editor; General Sir Jim Hockenhull of Britain’s Strategic Command; Vice Admiral Frank “Trey” Whitworth of America’s National Geospatial-Intelligence Agency; Tanja Lange of Eindhoven University of Technology. Transcripts of our podcasts are available via economist.com/podcasts.Listen to what matters most, from global politics and business to science and technology—subscribe to Economist Podcasts+.For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.

Milk is a baby’s first source of water and nutrients, providing everything that’s needed to grow for the first six months of life. Mothers can provide this milk themselves, through breastfeeding, or by giving their babies carefully-curated formula milk. But it’s only recently that scientists have started to discover that human breast milk is way more complex than previously thought. And that’s prompted researchers to find ways to improve formula milk too.Host: Alok Jha, The Economist’s science and technology editor. Contributors: Emilie Steinmark, science correspondent at The Economist; Cat Bohannon, author of “Eve”; Sharon Donovan, a professor of paediatric nutrition at the University of Illinois Urbana Champaign; Laura Katz, founder and CEO of the company Helaina; Victoria Slaughter of the company BIOMILQ; Shyam Sharan of the National Cancer Institute in Maryland; Emily Winup, midwife and mother of Alex; Esme, mother of Tallulah.Transcripts of our podcasts are available via economist.com/podcasts.Listen to what matters most, from global politics and business to science and technology—subscribe to Economist Podcasts+.For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.

Solar power is the world’s fastest-growing source of energy. It currently provides 6% of the world’s electricity but, by the mid-2030s, solar cells will probably be the planet’s single biggest source of electricity. A decade later they may be the world's largest source of energy. Access to this cheap, abundant power will make nearly everything else cheaper, too. How did solar energy get to this point and what will its rise mean for the future of the world? Plus, where does solar power technology go next—could unlimited energy from the Sun be collected from space?Host: Alok Jha, The Economist’s science and technology editor. Contributors: Jenny Chase of BloombergNEF; Ali Hajimiri of Caltech; Sam Adlen of Space Solar; and The Economist’s Hal Hodson and John McDermott.Transcripts of our podcasts are available via economist.com/podcasts.Listen to what matters most, from global politics and business to science and technology—subscribe to Economist Podcasts+.For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.

A new economy is emerging in space. Elon Musk’s SpaceX has driven down launch costs, helping to revolutionise space travel. As the cost of reaching Earth orbit falls, ideas for new businesses that could operate there are gathering steam—from manufacturing drugs to hotels and tourism. At the more exhilarating end of the spectrum is asteroid mining. Once a staple of science fiction, could it soon become reality?Host: Alok Jha, The Economist’s science and technology editor. Contributors: Peter Diamandis, founder of the XPRIZE Foundation; Sara Russell of Britain’s Natural History Museum; Lindy Elkins-Tanton of Arizona State University; Mitch Hunter-Scullion of the Asteroid Mining Corporation; The Economist’s Geoff Carr and Laurence Knight.For more on this topic, listen to our podcast on Starship.Transcripts of our podcasts are available via economist.com/podcasts.Listen to what matters most, from global politics and business to science and technology—subscribe to Economist Podcasts+.For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.

After years of slow progress, robots have suddenly been getting a lot cleverer and more capable. The technology behind ChatGPT—large language models—has given machines in the real world a dramatic brain upgrade. How is artificial intelligence bringing about a renaissance in robotics and allowing them to finally work in the world of humans?Host: Alok Jha, The Economist’s science and technology editor. Contributors: Dinesh Jayaraman, Arjun Krishna and Jason Ma of the University of Pennsylvania; Tom Standage, Shailesh Chitnis and Trisha Parayil of The Economist.Want to learn more about generative artificial intelligence? Listen to our series on the science that built the AI revolution.Transcripts of our podcasts are available via economist.com/podcasts.Listen to what matters most, from global politics and business to science and technology—subscribe to Economist Podcasts+.For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.

Have you ever had a visit from an angel, a ghost or perhaps even an alien? Plenty of people throughout history think they have. Some even report real, physical symptoms from their interactions with supernatural beings. But, although alien abductions and ghosts are not likely to be real, the stories around these paranormal events tell scientists a lot about how the human mind works. Alok Jha, The Economist’s science and technology editor, interviews Chris French, a psychologist and author of a new book, “The Science of Weird Shit”.Transcripts of our podcasts are available via economist.com/podcasts.Get a world of insights for 50% off—subscribe to Economist Podcasts+For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.

Narendra Modi is one of the most popular politicians on the planet. India’s prime minister is eyeing a third term atop the world’s biggest democracy. A tea-seller’s son, Mr Modi began life an outsider and the man behind the political phenomenon remains hard to fathom. India has become an economic powerhouse during his ten years in charge. But he’s also the frontman for a chauvinistic Hindu nationalist dogma. Can Mr Modi continue to balance both parts of his agenda and finish the job of turning India into a superpower? The Economist’s Avantika Chilkoti finds out what makes him tick. Launching June 2024.To listen to the full series, subscribe to Economist Podcasts+.If you’re already a subscriber to The Economist, you have full access to all our shows as part of your subscription. For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.

A technological revolution is under way in the world of health care. In the second of two episodes on the potential of artificial intelligence to transform the field, we gaze into the future to ask: how will medical researchers and doctors use the latest AI models to understand and treat disease in completely new ways?Host: Alok Jha, The Economist’s science and technology editor. Contributors: Natasha Loder, The Economist's health editor; Frank Uhlmann of The Francis Crick Institute; Regina Barzilay of MIT; Parashkev Nachev of UCL; The Economist’s Trisha Parayil.Want to learn more about generative artificial intelligence? Listen to our series on the science that built the AI revolution.Transcripts of our podcasts are available via economist.com/podcasts.Get a world of insights for 50% off—subscribe to Economist Podcasts+For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.

Artificial intelligence is already making its mark in health care—but new, bigger, models promise to improve how patients access services, help doctors spot diseases faster and transform how medical research is done. In the first of two episodes on the potential of AI in health care, we ask: how will patients benefit from the technology behind ChatGPT? Host: Alok Jha, The Economist’s science and technology editor. Contributors: Natasha Loder, The Economist's health editor; Gerald Lip of NHS Grampian; Peter Kecskemethy of Kheiron Medical; Pranav Rajpurkar of Harvard Medical School; Hugh Harvey of Hardian Health.Want to learn more about generative artificial intelligence? Listen to our series on the science that built the AI revolution.Transcripts of our podcasts are available via economist.com/podcasts.Get a world of insights for 50% off—subscribe to Economist Podcasts+For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.